Spindle-support for spinning and twisting machines



(No Model.)

T. MAYOR. SPINDLE'SUPPORT FOR SPINNING AND TWISTING MAGHINES.

No. 454,282. Patented June 16,1891.

UNITED STATES PATENT OEEIcE.

THOMAS MAYOR, OF PROVIDENCE, RIIODE ISLAND, ASSIGNOR TO GEORGE DRAPER & SONS, OF HOPEDALE, MASSACHUSETTS.

SPlNDLE-SUPPORT FOR SPINNING AND TWISTING MACHINES.

SPECIFICATION forming part of Letters Patent No. 454,282, dated June 16, 1891.

Application filed July I 1889. Serial No. 316,177. ,(No model.)

To all whom it may concern:

Be it known that I, THOMAS MAYOR, of the city of Providence, in the county of Providence and State of Rhode Island, have invented a new and useful Improvement in Spindle-Supports for Spinning and Twisting Machines; and I hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming part of this specification.

This invention has reference to improvements in the bearings for spinning and twist ing machine spindles adapted to single-rail machines.

It consists in a bolster-case provided with a socket, a combined bolster and step tube provided with an enlargement to fit the socket,

the combined bolster and step tube outside the enlargement being of less diameter than the interior of the bolster-case to permit a slight oscillating motion, an elastic packing to resist or limit the oscillating motion of the bolster and step tube, and a sleeve-whirl secured to the spindle above the bolster-tube; also,'in a socketed bolster-case, a combined bolster and step of less diameter at certain points than the interior of said case, thus forming an oil-chamber, and an elongated slit connecting the interior of the combined bolster and step tube with this oil-chamber.

Similar numbers of reference indicate corresponding partsin the drawings.

Figure 1 is aview of my improved spindlesupport and spindle. Fig. 2 isa sectional View through the line A B of Fig. 3. Fig. 3 is a top view showing the driving-band. Fig. 4: is a View of the combined bolster and step tube, showing the packing and the elongated slit for lubricating the spindle.

Spinning and twisting machine spindles are required to revolve at such high speed that the slightest imperfection in the construction or lubrication of the bearings causes heating, binding, thumping, or Wabbling of the spindle. At times all these defects are caused in spindles of the most careful construction; but any one of these defects impairs and often prevents the successful use of the spindle in spinning at the required high productive speed.

- mospheric conditions.

In practical use two elements operate to deflect the spindle from the true axial line, which, to secure perfect yarn, must be at all times and at all points of the length of the spindle-blade exactly in the center of the ring on the reciprocating ring-rail, so that the trav eler is at all times and at all places at the same distance from the axis of the spindle. One of these elements is the lateral strain exerted by the driving-band and the other the strain of the yarn between the traveler on the ring and the spindle or bobbin, particularly when laying the yarn near the upper end of the spindle or bobbin. Other disturbing elements are incident to unavoidable imperfections in the construction and operation of the spindle in practical spinning. A spindle constructed with the best tools is not perfectly round. Neither is its bearing-surface perfectly straight. The bolster and step bearings are only approximately perfect. The spindleblade, if perfectly true when made, is liable to be strained in doftlng. The bobbin is continually changing by use and the varying at- The strain of the driving-band is continually changing, and so is the strain of the yarn on the spindle.

The object of this invention is to so 0011- struct a spindle that the strain of the driving-band and the ever-varying strain in all directions of the yarn will be resisted, while the spindle-bearing may adjust itself automatically to the imperfections of the structure, so as to produce a spindle running perfectly steady without a blur at high speed.

Another object of this invention is to secure perfect lubrication of the spindle, as well as the bearing of the bolster and steptube in the bolster-case.

The spindle consists of the blade 6, the shaft or journal 7, and the pintle 8. To this is secured the sleeve 9, on the lower end of which the whirl 10 is formed. The spindle is supported in the tube shown in Fig. 4. The upper portion 11 forms the j ournal-box in which the shaft 7 of the spindle revolves, and is usually termed the bolster-bearing. The lower end of the tube is closed and forms the stepbearing for the spindle. The projection 13 on this combined bolster and step tube is preferably placed so that when the spindle rests on the step-bearing in the tube the center of Every blow caused by the revolution at high the groove in the whirl 10 or the line of the speed of an imperfectly round or an otherband-pull is on a line with the projection or wise imperfect spindle is cushioned by the 70 enlargement 13 of the combined bolster and yielding packing, the action of which is instep tube. dependent of its own resilience, for as every 14 indicates a yielding ring surrounding a imperfection of construction in the spindle, portion of the combined bolster and step tube. the strain on the yarn being wound on the 15 indicates an elongated slit in the wall spindle or bobbin or an unbalanced bobbin, 75 of the combined bolster and step tube. all revolve with the spindle, the yielding of The bolster-case consists in thebase 16,havthe packing at one instant at any point ining a downward-cylindrical projection 17, the dents the same, so that in the rotation of this lower end of which is screw-threaded. The centrifugal effort the normal packing is alprojection 17 extends through a hole in the ways in front of the effort, causing a rolling 8o spindle-rail slightly larger than the projecaction on the packing. Inawell-constructed tion, the base 16 rests 011 the bolster-rail, and spindle these lateral motions are infinitely the whole is firmly secured to the rail by the small; but without a cushion they repeat nut 18. From the base 16 extends upwardly themselves so often that the spindle will shake the tube 1.9. This tube is bored out to reand tremble, so as to frequently throw off the 85 ceive the combined bolster and step tube and bobbin from the blade of the spindle. By 20 forms the bolster-case. The lower portion of permitting a slight oscillating motion to the the bore is of slightly greater diameter than combined bolster and step tube and resisting the diameter of the part 12 of the combined the same by a yielding packing placed bebolster and step tube, while the upper diametween the bolster and step tube and the bolo ter of the bore, as shown,is sufficiently greater ster-case at any point as far as possible from 2 5 than the lower to form a shoulder, preferably the center of oscillation a spindle can be run slightly concaved, so as to form a seat for the perfectly steady at higher speed with less enlargement 13 on the combined bolster and power than spindles as heretofore constep tube. The yielding ring fits tightly in strueted. 95 the bolster-case and formsa yielding packing Having thus described my invention, I 0 between the inner wall of the bolster-case and claim as new and desire to secure by Letters the combined bolster and step-tube. The pin Patent- 20 holds the sleeve-whirl in place when the 1. A spindle-support consisting of a combobbin is dotted or withdrawn. It can be bined bolster and step, the bolster-case sup- 10o readily turned to allow of the withdrawing of porting and inclosing it and forming an oil- 3 5 the spindle from the bolster. chamber and having a rigid lateral bearing. The thorough lubrication of the bearingsis for the combined bolster and step at or near of the highest importance. To this end the the line of the band-pull, and a yielding interior of the bolster-case is connected by packing, the combincdbolster and step being 105 the duct 21 with the oil-reservoir 22, closed constructed to oscillate, resisted by the yield- 0 by the cap 23. The oil surrounds the coming packing, in combination with a spindle bined bolster and step tube and enters and whirl, as described. through the elongated slit 15 to supply the 2. A combined bolster and step bearing for necessary oil to the spindle-bearings. The a spindle provided with a projection, and a no oil-reservoir may be made of any desired dibolster-case closed at the bottom to form an ameter, so as to insure lubrication for a long oil-chamber and provided with asocketformtime, and as the height of the reservoir is ing the support for the projection on the comnearly on a line with the upperbearing of the bined bolster and step, in combination with spindle thorough lubrication is secured, as a spindle provided with a sleeve-whirl sur- 115 the oil at the bearings will be on a line with rounding the bolstercase, and a yielding 0 the oil in the reservoir. packing placed intermediate the bolster-case The operation of the spindle when in use and the combined bolster and step, as despinning yarn at the now usual high speed scribed. is as follows: As the spindle is accurately 3. A bolster-case closed at the bottom to I20 adjusted in the exact center of the spinningform an oil-chamber,a combined bolster and ring, it is essential that this position be mainstep tube of less diameter than the interior of tained. When the ring-rail is raised and the bolster-case, an annular projection formed yarn is spun on the upper end of the spinon the combined bolster and step, andayielddie, the draft of the yarn must be resisted, ing packing placed between the bolster-tube 12 5 and as the direction of this draft is continuand step-tube and the bolster-case, in combially changing by the traveler moving around nation with a spindle provided with asleeve' the ring the yielding packing continually rewhirl, the horizontal line of the band on the sists this lateral motion of the blade of the whirl being substantially on a line with the spindle, so as to slightlyyield to this draft, reannular projection on the combined bolster 13o sist it, and restore the true axial center of the and step tube, as described. spindle. The yielding packingaets exactlyin 4. The combination,withaspindle provided the same manner to resist the centrifugal tendwith a sleeve-whirl, of a combinedbolster and ency of an unbalanced bobbin or yarn load. step tube provided with an annular projec tion and a bolster-case closed at the bottom, constructed to closely fit the annular projectionand hold the combined bolster and step tube against lateral motion and permit axial oscillating motion of the bolster and step bearing, as described.

5. The combination, with the bolster-case closed at the bottom to form an oil-chamber, and a sleeve-whirl spindle, of acombined b01- ster and step bearing for the spindle supported in the bolster-case within the whirl to resist the band-pull and extending above and below the said support, and an elastic annular packing constructed to permit of slight oscillating motion of the combined bolster and step tube, as described.

6. The combination of a spindle and whirl with a spindle-support consisting of a bolster-case constructed to be secured to a spinning-machine and forming an oil-reservoir, from which oil is supplied to the spindle-bearings, a bolster and step bearing contained in said case, and a packing placed between the bolster bearing and the case, the bolsterbearing being firmly held in the bolster-case against lateral motion within the whirl, the upper end of the bolster-bearing and the lower or step bearing having capacity of slight lateral motion resisted by the yielding packing, as described.

7. The combination, with a sleeve-whirl spindle, of a bolster-case forming an oil-distributing chamber connected with an oil-reservoir, a bolster-tube containing the bolster and step bearing held in the bolster-case firmly against lateral motion at or near the line of the band-pull, the upper and lower portion being of less diameter than the interior of the bolster-case, and an elastic or yielding packing interposed between the bolster-tube and the bolster-case, as described.

8. In a support for a spindle, the combination, with the bolster-case having an oil-chamber and the bolster-tube containing the bolster and step bearing and provided with the annular projection 13 and the elongated slit 15, of the oil-reservoir 22, connected with the oilchamber of thcbolster-case by the duct 21 and extending above the bearing of the bolstertube in the bolster-case, as described.

9. The combination, with the bolster-case forming an oil-chamber, and a spindle having a sleeve-whirl surrounding the bolster-case, of a yielding packing and acombined bolster and step tube supported at or about midway between the step-bearing and the upper end of the bolster and bearing firmly against lateral motion in the bolster-case, the upper and lower ends of said combined bolster and steptube having capacity for lateral motion yieldingly resisted by the packing interposed between the bolster-case and the bolster and step tube, as described.

' 10. A combined bolster and step tube provibed with an annular projection and an annular yielding packing, in combination with a bolster-case adapted to be secured to a spinning-machine closed at the bottom to form an oil-chamber, and constructed to hold the combined bolster and step tube firmly against lateral motionand permit of slight oscillating motion,-as described. 1

THOMAS MAYOR. Witnesses:

J OSEPH A. MILLER, J12,

M. F. BLIGH. 

